Magnetization Reversal Process of Single Crystal α-Fe Containing a Nonmagnetic Particle

Journal Article · Fri Sep 25 04:00:00 EDT 2015 · Chinese Physics Letters

DOI:https://doi.org/10.1088/0256-307X/32/6/067502· OSTI ID:1229962

Li, Yi ^[1]; Xu, Ben ^[2]; Hu, Shenyang Y. ^[3]; Li, Yulan ^[3]; Li, Qiu-Lin ^[1]; Liu, Wei ^[1]

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1. Tsinghua Univ., Beijing (China); Tsinghua Univ., Shenzhen (China)
2. Tsinghua Univ., Beijing (China)
3. Pacific Northwest National Lab. (PNNL), Richland, WA (United States)

The magnetization reversal process and hysteresis loops in a single crystal α-iron with nonmagnetic particles are simulated in this work based on the Landau-Lifshitz–Gilbert equation. The evolutions of the magnetic domain morphology are studied, and our analyses show that the magnetization reversal process is affected by the interaction between the moving domain wall and the existing nonmagnetic particles. This interaction strongly depends on the size of the particles, and it is found that particles with a particular size contribute the most to magnetic hardening.

• Research Organization: Pacific Northwest National Laboratory (PNNL), Richland, WA (United States)
• Sponsoring Organization: USDOE
• DOE Contract Number: AC05-76RL01830
• OSTI ID: 1229962
• Report Number(s): PNNL-SA--113264; NT0104000
• Journal Information: Chinese Physics Letters, Journal Name: Chinese Physics Letters Journal Issue: 6 Vol. 32; ISSN 0256-307X
• Publisher: IOP Publishing
• Country of Publication: United States
• Language: English